Statutory question?

So i believe it's a strict liability crime and procedure depends on state to state. But as i was watching the TV show Lie to me, one of the episodes got me thinking of a scenario. Lets say a 22 year old male is out with his friends at a bar. He's drinking having a good time and a girl approaches him, starts flirting and so on. They end up getting drunk and having . The girl is 16 closely approaching 17. Would the guy have fault. Did he have the guilty mind to on purpose have with a minor. The act is obviously completed. but i don't understand how this can so easily be a strict liability crime. There has to be an exception for girls who go seek out a fake id go into a club with the purpose of hooking up with a male. Equally important , it's not like the male went to a middle school/ freshman HS to seek out 16 year olds. In all honesty, the only problem is that i think any normal joe, even at the age of 22 could tell that a girl is 15, 13, 12. Her converstations would be a bit off and her features would like young. But there are 16 year olds that honestly look 18. but how could a guy tell. some 18 year olds are very imature, the same goes for women. if a kid is turning 17 and shes 22, how could she tell, she's at a bar isn't it the bouncers dutty to make sure that a 16 year old is gettin in with a fake id. I remember i had a friend that at 16 had facail hair and easily looked 18. idk, rapist and predators should be locked up and punished but when the person is clearly doing no wrong how can they still be charged even if the facts are on their side. Yes , i've read cases that lower the crime but you will still be labeled as someone who has ually ulted a minor.